Weather on the 27 July

27 07 2013

Today marks a year since the opening ceremony of the Olympic Games, so to celebrate a year since the Games, we’ve taken a look back at the weather on 27 July.

The Met Office holds the UK’s weather and climate records, and we’ve created this infographic with daily weather statistics from the last 5o years.

Weather on the 27 July

View larger version (PDF).

Find out what weather is in store this year at London Anniversary Games on our website.

Weather for the 100m final on 5th August

1 08 2012

Yesterday we looked at the weather for ‘Super Saturday’, today is the turn of Sunday 5th August. Sunday is another busy day in the Olympic calendar with the 100m final as well as numerous medal events. We look back at what the weather has been like on 5th August for the last 30 years.

Will the weather be typical of this day previously? For the latest forecast for all Olympic events taking place this Sunday, visit our Olympic events pages.

What does the weather have in store for ‘Super Saturday’?

31 07 2012

With 25 gold medals up for grabs this Saturday we look back at the weather on this day over the last 30 years.

Get the forecast for every Olympic event this Saturday on our Olympic weather pages.

Science and technology developments for Olympic and Paralympic weather forecasts

25 07 2012

Our science and technology developments for the Olympic and Paralympic Games will help to deliver increasing accuracy and detail in our weather forecasts during the Games and well into the future.

As part of the services provided for London 2012, we have installed additional weather observation equipment and developed enhanced forecasting capability to support our staff.

The developments include daily air quality forecasts, high resolution wind and wave modelling for Weymouth and Portland, high resolution ensemble forecasting at 2 km for the whole of the UK and additional weather observing technology at Olympic sites.

Daily air quality forecasts

Weather plays a big part in determining air quality and air quality forecasts are now available for all 5000 forecast locations on our website. During the Olympics, air quality forecasts will also be available in map format. We’ve also produced a guide to how the air quality index affects health.

Sample daily air quality index map


Wind and wave modelling for Weymouth and Portland

Currently, our models can generate atmospheric weather data for every 1.5 km over the whole of the UK. However, due to the complexity of the winds around Weymouth and Portland a model will be used which gives nearly 20 times more detail than is usually available.

This ensures the highest detail possible for forecasts for wind and waves in the area during the London 2012 competition. While the output from these specially run models is primarily intended to help Met Office forecasters at the Weymouth and Portland events, it will also be available for the public to see for the duration of the Olympics in the showcase of the high resolution wave model.

Example total significant wave height forecast for Weymouth and Portland


High resolution ensemble forecasts

Recently the Met Office introduced cutting edge technology into its operational forecasting to help improve the accuracy of forecasting for ‘small-scale’ weather features like thundery showers. For the Olympics, the Met Office is set to take high-resolution forecasting a step further by running multiple forecasts at the same time, a technique called ensemble forecasting.

The high-resolution ensembles will be tested throughout the Olympics before being subject to further research with a view that the facility could be introduced operationally in the future, potentially leaving a legacy that will benefit the UK well after the Olympic and Paralympic Games are over.

Example high resolution ensemble forecast showing chance that temperature will reach 20 C

Weather and sports

24 07 2012

With just days to go until the opening ceremony of the London 2012 Olympic Games, we look at the affect of the weather on four Olympic sports – archery, hockeywindsurfing and triathlon .

Many sports are affected by the weather in some way and conditions are important to athletes and spectators alike. It can help or hinder – headwinds make running and cycling harder, while tailwinds help push us forward, certain conditions can even make world records invalid. For sports like windsurfing, the weather is central to the entire event – without wind, the event cannot take place.

On the whole, dry and settled conditions are favoured by competitors in most sports. However, high temperatures can be challenging, significantly affecting the performance of athletes and, in extreme cases, can cause heat illnesses such as heat cramps and heat stroke.

The Met Office is working closely with LOCOG to provide weather forecasts and information to teams and their trainers throughout the Olympic and Paralympic games. In the build up to the Olympics we’ve also been looking in more detail at how Olympic athletes and professional sportsmen and women look to the weather forecast to train and plan strategy and tactics.

“The weather, and especially the wind, has a fundamental impact on the score. I need to know how to prepare”, says Team GB archer Michael Pearte.

Read Michael’s full interview.

Great Britain Hockey player Maddie Hinch says that actually rain can be a welcome part of the forecast – as long as it’s not too cold.

Read Maddie’s full interview.

Triathlete Todd Leckie told us his ideal conditions would be cool temperatures, no rain and a favourable tail wind. In Britain, though, he admits this is often not the case.

Read Todd’s full interview.

Windsurfing and the weather are intrinsically linked – the wind has an impact on every single session, affecting those just starting out and experienced professionals.

Amy Carter, Editor of Boards Magazine, explains the conditions that windsurfers look out for.

For weather forecasts for all Olympic venues see our events forecast page.


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